Watlow Electric MINICHEF 2000 User Manual 2

MINICHEFTM2000

97

Registered Company

Winona, Minnesota USA

ISO 9001

TOTAL

CUSTOMER

SATISFACTION

Applications 1 - 6

Cook-&-Hold Oven Applications Guide

Programming & Operating Steps

Watlow Controls

1241 Bundy Blvd. P.O. Box 5580 Winona, Minnesota U.S.A. 55987-5580 (507) 454-5300, Fax (507) 452-4507

WMC2-XAGN-0001-Rev A May 1997

$5.00

Made in the U.S.A.

32ºF (0ºC) for tc inputs to [tr`Hi] [tr`Hi] Temperature Range High [tr`lo] to 1200°F (649°C) [ready] Preheat Ready Feature Yes, No [rband] Ready Band 1 to 1200°F (649°C) [Cloc`] Real Time Clock Display Yes, No [plOSS] Power Loss Menu Resume Yes, No [al``1] Alarms for Channel 1 None, Dev, Proc, Both [aL`P1] Absolute Process Alarm 1 100 to 1200°F (38 to 649°C) [aLdL1] Low Deviation Alarm 1 -999 to 0°F (-555 to 0°C) [aLdHi] High Deviation Alarm 1 0 to 999°F (0 to 555°C) [AL``2] Alarm for Channel 2 None, Dev, Proc, Both [AL`P2] Absolute Process Alarm 2 100 to 1200°F (38 to 649°C) [aLdL2] Low Deviation Alarm 2 -999 to 0°F (-555 to 0°C) [aLdH2] High Deviation Alarm 2 0 to 999°F (0 to 555°C)

[tHErl] Thermal [tyPE`] Temperature Control Type PID, On-Off

[HYSt1] Hysteresis 1 1 to 99°F (1 to 55°C) [Pid`U] PID Units SI, US [tune1] Auto-tuning 1 on, OFF [ProP1] Proportional Band 1 1 to 999°F (1 to 555°C) [rSEt1] Reset (integral) Gain 1 0.00 to 9.99 repeats/minute [int`1] Integral Gain 1 0.00 to 99.99 minutes/repeat [rAtE1] Rate (derivative) Gain 1 0.00 to 9.99 minutes [dEr`1] Derivative Gain 1 0.00 to 9.99 minutes [CYcL1] PID Cycle Time 1 1 to 60 seconds

[`diag] WatHelp Used for equipment troubleshooting and testing. Not used when programming. See the Hardware

Diagnostics & Software Setup Guide.

Application 1 Watlow MINICHEF 2000 ■ 3

Program Mode Quick Reference

These are the functions, parameters and values included in the Program Mode for this application. You must select Application 1 to access them. For menu programming directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes a detailed explanation of all parameters and values.

Function Parameter Value Your Settings

[M`__] Menu Numbers 1 - 6 [Stpt1] Set point 1 Temp range low

Temperature of set point 1. to temp range high [TiNe1] Time 1 Format varies based

Run time of set point 1. on configuration. [fan`1] Fan 1 Speed Single Speed: On, Off

Speed of fan 1 during time 1. Two Speed: Off, Low, High [Stpt2] Set point 2 Temp range low

Temperature of set point 2. to temp range high [TiNe2] Time 2 Format varies based

Run time of set point 2. on configuration. [fan`2] Fan 2 Single Speed: On, Off

Speed of fan during time 2 Two Speed: Off, Low, High [Probe] Probe On, Off

Activates probe function. [ptenp] Probe Temperature Temp range low

Temperature at which probe to temp range high will switch controller to hold condition.

[Hstpt] Hold Set point Temp range low Temperature at which the to temp range high oven will operate during hold sequence.

[Htine] Hold Time 0 = infinite. Asetting >0 Run time of hold sequence. = hold time.

Format varies based on configuration.

[H`fan] Hold Fan Single Speed: On, Off Speed of fan during hold time. Two speed: Off, Low, High

Auto-tuning Note:

Before auto-tuning Application 1, Set Point 1 of Menu 1 must first be set to a value that is typical of your application. (See the Hardware & Software Setup Guide for information on programming menus.) Then set [tHErL] / [tunE1] to [```on]. After you accept [```on], by pressing “Enter,” the controller will display [`tunE] while auto-tuning is taking place.

The controller will cancel the auto-tuning process if it cannot be completed in 80 minutes. You can cancel the auto-tuning process at any time by pressing either key C or key D and accepting [``Off], by pressing “Enter,” when it appears.

4 ■ Watlow MINICHEF 2000 Application 1

Step 7 Design a Faceplate Overlay

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Heat

Menu

123

456

Your Company Logo

To complete the installation, you must apply a graphic membrane to the front panel of the controller. The following artwork will help you design and create a membrane for this application. For more dimensions and guidelines, see the Hardware & Software Setup Guide.

Suggested End-user Overlay:

This Prototyping and Training Membrane Overlay will help you with the configuration and programming steps. To order it, see the Ordering Information at the back of this guide.

Application 1 Watlow MINICHEF 2000 ■ 5

Step 8 Operate the Controller

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW

FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

Summary of Key Functions in Operation Mode

Key Function

A Menu 1 B Menu 2 C Menu 3 D Menu 4 E Menu 5 F Menu 6

Startup

Apply power to the oven. [`iDle] will appear on the display. If the Real Time Clock Display option is installed and [SetUp] / [Cloc`] = [``yes],

the time of day will appear on the display.

Preheat

If the [Ready] parameter under the [SetUp] function in the Configuration Mode is set to [``yes], the controller will detect temperatures and preheat to operating temperature (set point minus the ready band).

• Press the key for the menu you want to run. Each key selects a different menu. You can select from up to six menus that control temperature and cooking time. Only one menu may be run at a time.

Note: The controller will not respond if you select an invalid menu (one for which the sum of Time 1 and Time 2 is 0).

The menu you have chosen becomes the current menu for controller operation. Until the menu is completed or canceled, the indicator light above the menu key will light up (flashing or steady) to indicate the active menu.

• If the oven is not at operating temperature, it will preheat. Meanwhile:

The word [Pre-`] [`Heat] will appear on the display for a few moments.The menu key indicator light will flash slowly. The temperature of Channel 1 will be displayed until the operating temperature is reached.

(The Heat output indicator light — G, just below the display — will light up whenever the controller is calling for heat.)

6 ■ Watlow MINICHEF 2000 Application 1

When the oven is at operating temperature (set point minus the ready band) [Ready]

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[`1459]

Edit Accept

Back-UpExit

AB

GH

AB

GH

STEADY

ON

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW

FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

will appear on the display and the menu key indicator light will flash rapidly. You are now ready to cook with the active menu.

• If the oven is at operating temperature, the display goes directly to [Ready] without indicating preheat or temperature.

Note: You can skip preheat and go directly to the cooking sequence by pressing the menu key a second time.

Run a Menu (with preheat feature)

This procedure describes how to run an active menu when the preheat feature is active (when the [ready] parameter in the [SetUp] function of the Configuration Mode is set to [``yes]).

1. With [`idle] or time of day on the display, press the key for the menu you want to run.

If the preheat condition has not been met, the oven will preheat until [ready] appears on the display.

Note: You can skip preheat and go directly to the cooking sequence by pressing the menu key a second time.

If the oven is already at operating temperature, [ready] will appear on the display.

2. With [ready] on the display, place the food in the oven and insert the meat probe (if necessary). Then press the active menu key (indicated by the rapidly flashing LED).

The menu key indicator light will light up. Time will count down on the display. The unit will run the following two-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2.

3. If the probe parameter has been selected [```on], the oven will run the probe sequence when the cooking sequence is complete.

[Probe] will appear on the display. The unit will continue to cook until the food reaches the programmed probe temper-

ature.

4. Once the cooking sequence (and the probe sequence, if run) is complete, the unit will

Application 1 Watlow MINICHEF 2000 ■ 7

switch to the Hold sequence.The display will alternate slowly between Hold and

B

DECF

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit



G H

A

SLOW FLASH

DECF

MINICHEF 2000

[``EnD]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

G H

AAB

GH

SLOW

FLASH

H

MINICHEF 2000

[`Ho1d]] [``!¢4] [`Ho1d] [``!¢9]

Edit Accept

Back-UpExit

AB

DECF

G

...

count up time.

If the Hold time [HtinE] parameter has been set to 0, the unit will count up time indefinitely. The hold sequence will end and the controller will go into idle when you cancel the current menu by pressing the active menu key.

If [HtinE] is greater than 0, the unit will run the hold sequence until the hold time expires. It will then switch to the sequence described in 5.

5. When the cooking cycle is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound].:

6. Once the controller goes into idle, the menu key indicator light and the heat outputs

7. To repeat cooking, repeat steps 1 through 4 or 5.

Run a Menu (without preheat feature)

This procedure describes how to run an active menu when the preheat feature is inactive — in other words, when the [ready] parameter in the [SetUp] function of the Configuration Mode is set to [```no].

8 ■ Watlow MINICHEF 2000 Application 1

With Sound set to 0: The controller automatically switches to idle, in which the controller does not maintain temperature and does not run time. [`idle] or current time of day will appear on the display. The menu key indicator light will be off.

With Sound set to 1, 2, or 3: [``end] will appear on the display and an audible tone will be emitted. The menu key indicator light will flash rapidly. You can acknowledge and silence the tone by pressing the active menu key or it will automatically time out within 20 seconds and go into idle.

With Sound set to 4 or 5: [``end] will appear on the display and the menu key indicator light will flash rapidly. You must acknowledge the audible tone by pressing the active menu key. Once acknowledged the audible tone is silenced and the controller goes into idle.

will switch off.The controller will not regulate to any temperature.

1. With idle on the display, place food in the oven and insert meat probe (if necessary).

H

MINICHEF 2000

[`Ho1d]] [``!¢4]

Edit Accept

Back-UpExit

AB

DECF

G

DECF

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[`0009]

Edit Accept

Back-UpExit

AB

GH

AB

GH

STEADY

ON

2. Press the key for the menu you want to run. The menu key indicator will light up. Time will count down on the display. The unit will run the following two-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over from Time 1 to Time 2.

3. When the timed cooking sequence is complete, the oven will run the probe cooking sequence, if the probe parameter has been selected [```on], [Probe] will appear on the display.

The unit will continue to cook until the food reaches the programmed probe temperature.

4. Once the entire cooking sequence (timed cook and probed cooking) is complete, the unit will switch to the Hold sequence.

The display will alternate slowly between Hold and count up time. If the Hold time parameter [Htine] has been set to 0, the unit will count up time indefinitely. If Hold time [Htine] is greater than 0, the unit will run the hold sequence until the hold time expires. It will then switch to the sequence described in 5.

The hold sequence will end when you cancel the current menu or activate another.

Application 1 Watlow MINICHEF 2000 ■ 9

5. When the cook-&-hold cycle is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound]:

With Sound set to 0: The controller automatically switches to idle, in which the controller does not maintain temperature and does not run time. [`idle] or current time will appear on the display. The menu key indicator light will be off.

With Sound set to 1, 2, or 3: [``end] will appear on the display and an audible tone will be emitted. The menu key indicator light will flash rapidly. You can acknowledge and silence the tone by pressing the active menu key or it will time out in 1 to 20 seconds and go into idle.

With Sound set to 4 or 5: [``end] will appear on the display and the menu key indicator light will flash rapidly. You must acknowledge the audible signal by pressing the active menu key. Once acknowledged the tone is silenced and the controller goes into idle.

6. Once the controller goes into idle, the menu key indicator light and the heat outputs will switch off. The controller will not regulate to any temperature.

7. To repeat cooking, repeat steps 1 through 4 or 5.

Pause a Menu

While cooking, you can pause cooking time by pressing the active menu key once. The menu key indicator light will flash rapidly.

Countdown time will resume when you press the active menu key again.

Cancel a Menu

Canceling a menu stops controller operation completely. The controller does not maintain set point temperatures or run time. You cancel a menu to run another menu, stop menu operation for any reason, or are preparing to shut off the oven.

• Press the active menu key for 2 seconds. In hold, momentarily press the menu key. Heat outputs will switch off. Heat output indicator lights will switch off. [`idle] or time of day will be on the display.

Change Menus or Restart

1. If the controller is preheating or running a menu, cancel the menu by pressing and holding the active menu key for 2 seconds. If the controller is in [`idle] go to 2.

2. Press the key for the menu you want to run. Based on its programming, the unit will run the menu in one of the ways described earlier.

Door Opening

When you open the oven door (uses Event Input 1 for switch closure. Switch closure indicates the door is open) the unit will act as described below.

During the cooking sequence: time is paused — [`Door] will appear on the display. The heat and fan will be shut off. During the preheat or hold sequence: [`Door] will appear on the display. The heat and

fan will be shut off. When you close the door, the unit will operate normally.

Event Outputs

While running a menu: When Low fan speed (or single-speed fan) is on, Event Output 1 is on. When High fan speed is on, Event Output 2 is on.

ç

WARNING: Starting or initiating a menu can cause or initiate fan motion. Appropriate reasonable care should be taken to prevent personal injury or machine damage as a result of operator initiated or unexpected fan motion.

Temperature Alarms

The controller will alert you to temperature alarm conditions if they occur. If an alarm occurs, take action as determined by your supervisor. See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of temperature alarms.

Errors

The controller will alert you to errors if they occur. Errors are critical problems that shut down the unit. If an error occurs, an error message will appear on the display. You should switch off the power and call for service.

See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of errors.

10 ■ Watlow MINIC HEF 2000 Application 1

2

Application 2

Automatic Cook-&-Hold Oven with Meat Probe Option

One Heat Channel, 17 Menus

Introduction to Application 2 . . . . . . . . . . . . . . 11

Configuration Mode Quick Reference . . . . . . . . 13

Program Mode Quick Reference. . . . . . . . . . . . 14

Step 7 Design a Faceplate Overlay . . . . . . . . . . 15

Step 8 Operate the Controller . . . . . . . . . . . . . 16

Application 2 allows you to program as many as 17 menus to control one temperature channel, a fan and cooking time for an automatic cook-&-hold oven with or without a meat probe. The application includes a two-step cooking sequence and a hold function.

Overview of Key Steps

1. Install the MINICHEF 2000.

2. Wire the controller.

3. Configure the controller.

4. Program the menus.

5. Set the controller security.

6. Set the Real-time Clock.

For instructions on Steps 1, 2, 3, 4, 5 and 6, see the Hardware & Software Setup Guide.

7. Design, manufacture and apply faceplate overlay for end-users. (For a suggested design to suit this application, see this section. For overlay dimensions and guidelines, see the Hardware & Software Setup Guide.)

8. Operate the controller. (See this application guide.)

Application 2 Watlow MINICHEF 2000 ■ 11

Key Functions in Configuration Mode

Heat

1

2

4

5

Start/

Stop

6

Down

Your Company Logo

3

Up

Input 1 Oven Temperature → Input 2 Probe Temperature → Event Input 1 Door Open →

Event Input 2 not used →

→Output 1 Heat

→Output 2 not used

→Event Output 1 Fan Low →Event Output 2 Fan High →Output 5 Audible Alarm

Menu

Select

Heat

1

2

5

Start/

Stop

6

Down

Your Company Logo

3

Up

4

Menu

Select

Heat indicator light Lit

when heat output is on.

Not Used

Menu Select Enter menu

mode or select menu.

Increment Scroll through valid menus.

Start/Stop Activate or cancel active menu.

Decrement Scroll through valid menus.

Start/Stop Indicator Light

Slow flash...Preheating Rapid flash...Ready Lit...Cooking Off...Done

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Display five-digit, sevensegment numeric LED display.

Indicator lights

(1 for each key, 2 for heat channels).

Edit key (A) Access the next level of parameters or values.

Enter key (B) Enter the value and return to previous level.

Home key (D) Move to Operation Mode with a two-second key press.

Up key (C) Move up the lists.

Escape key (E) Return to original value when editing a parameter value.

Down key (F) Move down the lists.

Key Functions in Operation Mode

Summary of Input/Output Functions

Note: For details, see wiring instructions in the

12 ■ Watlow MINIC HEF 2000 Application 2

Hardware & Software Setup Guide.

Configuration Mode Quick Reference

These are the functions, parameters and values included in the Configuration Mode for this application. You must select Application 2 to access them. For directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes an explanation of all parameters and values.

Function Parameter Value Your Settings

[Etype] Equipment-Type [appl`] Application Number 1 - 28 2

[a_Loc] Application Number Yes, No

Security Lock

[Sound] Audible Alarm Sound 0 - 5 [FAn``] Fan Speed 1 spd, 2 spd [delay] Fan Delay Time 0 - 120

[SEtUP] Setup [`Ç_Ï`] Temperature Display Format °C or °F

[time] Time Display Format MMM:SS, HH:MM, H:MM:SS [Chirp] Key Chirp On, Off [loc``] Menu Security Lock Yes, No [tc```] Thermocouple Type J, K (shown as [````H]), E [rtd``] RTD Curve DIN, JIS [tconp] WatCurve™ Temperature On, Off

Compensation

[Ofst1] Temp. Offset, Channel 1 -99 to 99°F (-55 to 55°C) [Ofst2] Temp. Offset, Channel 2 -99 to 99°F (-55 to 55°C) [tr`lo] Temperature Range Low 0ºF (-18ºC) for RTD inputs

32ºF (0ºC) for tc inputs to [tr`Hi] [tr`Hi] Temperature Range High [tr`lo] to 1200°F (649°C) [ready] Preheat Ready Feature Yes, No [rband] Ready Band 1 to 1200°F (649°C) [Cloc`] Real Time Clock Display Yes, No [plOSS] Power Loss Menu Resume Yes, No [al``1] Alarm for Channel 1 None, Dev, Proc, Both [aL`P1] Absolute Process Alarm 1 100 to 1200°F (38 to 649°C) [aLdL1] Low Deviation Alarm 1 -999 to 0°F (-555 to 0°C) [aLdH1] High Deviation Alarm 1 0 to 999°F (0 to 555°C) [AL``2] Alarm for Channel 2 None, Dev, Proc, Both [AL`P2] Absolute Process Alarm 2 100 to 1200°F (38 to 649°C) [aLdL2] Low Deviation Alarm 2 -999 to 0°F (-555 to 0°C) [aLdH2] High Deviation Alarm 2 0 to 999°F (0 to 555°C)

[tHErl] Thermal [tyPE`] Temperature Control Type PID, On-Off

[HYSt1] Hysteresis 1 1 to 99°F (1 to 55°C) [Pid`U] PID Units SI, US [tune1] Auto-tuning 1 on, OFF [ProP1] Proportional Band 1 1 to 999°F (1 to 555°C) [rSEt1] Reset (integral) Gain 1 0.00 to 9.99 repeats/minute [int`1] Integral Gain 1 0.00 to 99.99 minutes/repeat [rAtE1] Rate (derivative) Gain 1 0.00 to 9.99 minutes [dEr`1] Derivative Gain 1 0.00 to 9.99 minutes [CYcL1] PID Cycle Time 1 1 to 60 seconds

[`diag] WatHelp Used for equipment troubleshooting and testing. Not used when programming. See the Hardware

Diagnostics & Software Setup Guide.

Application 2 Watlow MINICHEF 2000 ■ 13

Program Mode Quick Reference

These are the functions, parameters and values included in the Program Mode for this application. You must select Application 2 to access them. For menu programming directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes a detailed explanation of all parameters and values.

Function Parameter Value Your Settings

[M``] Menu Numbers 1 - 17 [Stpt1] Set point 1 Temp range low

Temperature of set point 1. to temp range high [TiNe1] Time 1 Setting both Time 1

Run time of set point 1. and Time 2 at 0 invalidates

selected menu. Format varies based on configuration.

[fan`1] Fan 1 Speed Single Speed: On, Off Speed of fan 1 during time 1 Two Speed: Off, Low, Hghi

[Stpt2] Set point 2 Temp range low Temperature of set point 2. to temp range high

[TiNe2] Time 2 Setting both Time 1 and Run time of set point 2. Time 2 to 0 invalidates

selected menu. Format varies based on configuration.

[fan`2] Fan 2 Single Speed: On, Off Speed of fan during time 2 Two Speed: Off, Low, High

[Probe] Probe On, Off Activates probe function.

[ptenp] Probe Temperature Temp range low Temperature at which probe to temp range high will switch controller to hold condition.

[Hstpt] Hold Set point Temp range low Temperature at which the to temp range high. oven will operate during hold sequence

[Htine] Hold Time 0 = infinite. Asetting >0 Run time of hold sequence. = hold time.

Format varies based on configuration.

[H`fan] Hold Fan Single Speed: On, Off Speed of fan during hold time. Two speed: Off, Low, High

Auto-tuning Note:

Before auto-tuning Application 2, Set Point 1 of Menu 1 must first be set to a value that is typical of your application. (See the Hardware & Software Setup Guide for information on programming menus.) Then set [tHErL] / [tunE1] to [```on]. After you accept [```on], by pressing “Enter,” the controller will display [`tunE] while autotuning is taking place.

The controller will cancel the auto-tuning process if it cannot be completed in 80 minutes. You can cancel the auto-tuning process at any time by pressing either key C or key D and accepting [``Off], by pressing “Enter,” when it appears.

14 ■ Watlow MINIC HEF 2000 Application 2

Step 7 Design a Faceplate Overlay

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Heat

1

2

5

Start/

Stop

6

Down

Your Company Logo

3

Up

4

Menu

Select

To complete the installation, you must apply a graphic membrane to the front panel of the controller. The following artwork will help you design and create a membrane for this application. For more dimensions and guidelines, see the Hardware & Software Setup Guide.

Suggested End-user Overlay:

This Prototyping and Training Membrane Overlay will help you with the configuration and programming steps. To order it, see the Ordering Information at the back of this guide.

Application 2 Watlow MINICHEF 2000 ■ 15

Step 8 Operate the Controller

DECF

MINICHEF 2000

[````1]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[````9]

Edit Accept

Back-UpExit

AB

GH

AB

GH

DECF

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

AB

GH

Summary of Key Functions in Operation Mode

Key Operation Function

A None B None C Menu Increment D Menu Select E Start/Stop F Menu Decrement

Start-up

Apply power to the oven. [`idle] will appear on the display. If the Real Time Clock Display option is installed and [setup] / [Cloc`] = [``Yes],

the time of day will appear on the display.

Select a Menu

1. Press the Menu Select key The controller will display the currently selected menu.

2. Press the Up-arrow or Down-arrow key until the menu you want appears on the display.

The controller will only display valid menus (those for which Time 1 or Time 2 for the menu are set to greater than 0).

3. Press the Menu Select key again or press the Start key to immediately run the menu.

The menu you have chosen becomes the current menu for controller operation.

Preheat

If the [Ready] parameter under the [SetUp] function in the Configuration Mode is set to yes, the controller will detect temperatures and preheat to operating temperature (above relative set point minus the ready band).

16 ■ Watlow MINIC HEF 2000 Application 2

• Activate the menu by pressing the Start/Stop key.

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[`1459]

Edit Accept

Back-UpExit

AB

GH

AB

GH

STEADY

ON

RAPID FLASH

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW

FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

If the oven is not at operating temperature, it will preheat. Meanwhile: The word [Pre-`] [`Heat] will appear on the display for a few moments. The

Start/Stop key indicator light will flash slowly. The temperature of Channel 1 will be displayed until the operating temperature is reached.

(The heat output indicator light - G, just below the display- will light up whenever the controller is calling for heat.)

When the oven is at operating temperature (above the relative set point minus the ready band) [Ready] will appear on the display and the Start/Stop key indicator light will flash rapidly. You are now ready to cook with the active menu.

• If the oven is at operating temperature, the display goes directly to [Ready] without indicating preheat or temperature.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

Run a Menu (with preheat feature)

This procedure describes how to run an active menu when the preheat feature is active (when the [ready] parameter in the [SetUp] function of the Configuration Mode is set to [``yes]).

1. Select the menu you want to run as shown earlier in “Select a Menu”.

2. With [`idle] or time of day on the display, press the Start/Stop key.

If the preheat condition has not been met, the oven will preheat until ready appears on the display.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

If the oven is already at operating temperature [ready] will appear on the display.

Application 2 Watlow MINICHEF 2000 ■ 17

3. With [ready] on the display, place the food in the oven and insert the meat probe (if

B

DECF

MINICHEF 2000

[idle`]

Edit Accept

Back-UpExit

G H

A

SLOW FLASH

DECF

MINICHEF 2000

[EnD``]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[idle`]

Edit Accept

Back-UpExit

G H

AAB

GH

RAPID

FLASH

SLOW FLASH

H

MINICHEF 2000

[`Ho1d]] [``!¢4] [`Ho1d] [``!¢9]

Edit Accept

Back-UpExit

AB

DECF

G

...

H

MINICHEF 2000

[probe]

Edit Accept

Back-UpExit

AB

DECF

G

necessary). Then press the Start/Stop key (indicated by the rapidly flashing indicator light).

The Start/Stop key indicator will light up. Time will count down on the display. The unit will run the following two-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2.

4. If the probe parameter has been selected [```on], the oven will run the probe sequence when the cooking sequence is complete:

[Probe] will appear on the display.

The unit will continue to cook until the food reaches the programmed probe temperature.

5. Once the cooking sequence (and the probe sequence, if run) is complete, the unit will switch to the Hold sequence.The display will alternate slowly between Hold and count up time.

If the Hold time parameter [HtinE] has been set to 0, the unit will count up time indefinitely. The hold sequence will end and the controller will go into idle when you cancel the current menu by pressing the Start/Stop key.

If [HtinE] is greater than 0), the unit will run the hold sequence until the hold time expires. It will then switch to the sequence described in 6.

6. When the cooking cycle is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound].:

18 ■ Watlow MINIC HEF 2000 Application 2

With Sound set to 0: The controller automatically switches to idle, in which the controller does not maintain the temperatures at set point and does not run time. [`idle] or current time will appear on the display. The Start/Stop key indicator

light will be off.

H

MINICHEF 2000

[probe]

Edit Accept

Back-UpExit

AB

DECF

G

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[`1459]

Edit Accept

Back-UpExit

AB

GH

AB

GH

STEADY

ON

RAPID FLASH

With Sound set to 1, 2, or 3: [``end] will appear on the display and an audible tone will be emitted. The Start/Stop key indicator light will flash rapidly. You can acknowledge and silence the tone by pressing the Start/Stop key or it will automatically time out within 2 seconds for setting 1 or 20 seconds for settings 2 or 3 and then go into idle. The Start/Stop key indicator light will be off.

With sound set to 4 or 5: [``end]will appear on the display and the Start/Stop key indicator light will flash rapidly. You must acknowledge the audible tone by pressing the Start/Stop key. Once acknowledged the audible tone is silenced and the controller goes into idle. The Start/Stop key indicator light will be off.

7. Once the controller goes into idle, the Start/Stop key indicator light and heat output will switch off.The controller will not regulate to any temperature.

8. To repeat cooking, repeat steps 1 through 5 or 6.

Run a Menu (without preheat feature)

This procedure describes how to run an active menu when the preheat feature is inactive - in other words, when the [ready] parameter in the [SetUp] function of the Configuration Mode is set to [```no].

1. Select the menu you want to run as shown earlier in “Select a Menu”.

2. With idle on the display, place the food in the oven and insert the meat probe (if necessary).

3. Press the Start/Stop key. The Start/Stop key indicator will light up. Time will count down on the display. The unit will run the following two-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2.

4. When the timed cooking sequence is complete, the oven will run the probe cooking sequence (if the probe parameter is set to [```on]) [Probe] will appear on the display.

The unit will continue to cook until the food reaches the programmed probe temperature.

5. Once the entire cooking sequnce (timed cook and probed cooking) is complete, the unit will switch to the Hold sequence.The display will alternate slowly between

Application 2 Watlow MINICHEF 2000 ■ 19

hold and count up time. If the Hold time parameter [Htine] has been set to 0, the unit will count up time

indefinitely. The hold sequence will end when you cancel the current menu or activate another menu.

If Hold time [Htine] is greater than 0, the unit will run the hold sequence until the hold time expires. It will then switch to the sequence described in 6.

6. When the cook-&-hold cycle is finished, one of the following will happen, depending on the way the controller was programmed at [Etype]/ [sound]:

With Sound set to 0: The controller automatically switches to idle, in which the controller does not maintain the temperatures at set point and does not run time. [`idle] or current time will appear on the display. The Start/Stop key indicator light will be off.

With Sound set to 1, 2, or 3: [``end] will appear on the display and an audible tone will be emitted. The Start/Stop key indicator light will flash rapidly. You can acknowledge and silence the tone by pressing the Start/Stop key or it will automatically time out within 2 seconds for setting 1 or 20 seconds for settings 2 or 3 and then go into idle. The Start/Stop key indicator light will be off.

With sound set to 4 or 5: [``end] will appear on the display and the Start/Stop key indicator light will flash rapidly. You must acknowledge the audible tone by pressing the Start/Stop key. Once acknowledged the audible tone is silenced and the controller goes into idle. The Start/Stop key indicator light will be off.

7. Once the controller goes into idle, the Start/Stop key indicator light and heat outputs will switch off. The controller will not regulate to any temperature.

8. To repeat cooking, repeat steps 1 through 5 or 6.

Pause a Menu

While cooking, you can pause cooking time by pressing the Start/Stop key once. The Start/Stop key indicator light will flash rapidly. [PAUSE] will appear on the display. Countdown time will resume when you press the active menu key again.

Cancel a Menu

Canceling a menu stops controller completely. The controller does not maintain set point temperatures or run time. You cancel a menu to run another menu, stop menu operation for any reason, or are preparing to shut off the oven.

• Press the Start/Stop key for 2 seconds (in hold, momentarily press the Start/Stop

Restart a Menu

1. If the controller is preheating or running a menu, cancel the menu by pressing and

2. Press the Start/Stop key.

key). Heat outputs will switch off. Heat output indicator lights will switch off. [`idle] or time of day will be on the display. The fan will remain on for the time set in Configuration Mode [EtyPE] / [deLAY].

holding the Start/Stop key for 2 seconds. If the controller is in [`idle], go to 2.

Based on its programming, the unit will run the menu in one of the ways described earlier.

20 ■ Watlow MINIC HEF 2000 Application 2

Change Menus

1. With the controller in idle, select the menu you want to run by performing the pro-

2. Press the Start/Stop key.

Door Opening

When you open the oven door (uses Event Output 1 for switch closure. Switch closure indicates the door is open) the unit will act as described below.

During the cooking sequence: time is paused— [`Door] will appear on the display. The heat and fan output signal will shut off.

During the preheat or hold sequence: [`Door} will appear on the display. The heat and fan output signal will shut off.

When you close the door the unit will operate normally.

Event Outputs

While running a menu when the Configuration Mode [EtyPE] / [FAn``] is set to [``2]:

When Low fan speed is on, Event Output 1 is on. When High fan speed is on, Event Output 2 is on.

While running a menu when the Configuration Mode [EtyPE] / [FAn``] is set to [``1]: When the fan is on, Event Output 1 is on.

cedure under “Select a Menu” earlier in this section.

Based on its programming, the unit will run the menu in one of the ways described earlier.

ç

WARNING: Starting or initiating a menu can cause or initiate fan motion. Appropriate reasonable care should be

taken to prevent personal injury or machine damage as a result of operator initiated or unexpected fan motion.

Temperature Alarms

The controller will alert you to temperature alarm conditions if they occur. If an alarm occurs, take action as determined by your supervisor. See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of temperature alarms.

Errors

The controller will alert you to errors if they occur. Errors are critical problems that shut down the unit. If an error occurs, an error message will appear on the display. You should switch off the power and call for service.

See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of errors.

Application 2 Watlow MINICHEF 2000 ■ 21

Watlow Electric MINICHEF 2000 User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Configuration Mode Quick Reference

Program Mode Quick Reference

Step 7 Design a Faceplate Overlay

Step 8 Operate the Controller

Configuration Mode Quick Reference

Program Mode Quick Reference

Step 7 Design a Faceplate Overlay

Step 8 Operate the Controller